Exam 10: The Muscular System

Which group of muscles elevates the first two ribs and flexes and rotates the neck?

Which of the following muscles inserts to the posterior calcaneus via the calcaneal tendon?

If L = load,F = fulcrum,and E = effort,what type of lever system is described as LEF?

Figure 10.3 Using Figure 10.3, match the following: -Teres major muscle.

Figure 10.3 Using Figure 10.3, match the following: -Rotates scapula.

Paralysis of which of the following would make an individual unable to flex the thigh?

________ is a powerful forearm extensor.

Figure 10.1 Using Figure 10.1, match the following: -Second-class lever.

Muscles connecting to the hyoid bone are important for swallowing and speech.

The arrangement of a muscle's fascicles determines its range of motion and power.

Figure 10.2 Using Figure 10.2, match the following: -Coracobrachialis.

What is a muscle that provides the major force for producing a specific movement called?

An elderly woman,with extensive osteoarthritis of her left hip joint,entered the hospital to have a total hip joint replacement (prosthesis implantation).After surgery,her left hip had to be maintained in abduction to prevent dislocation of the prosthesis while healing was occurring.An abduction pillow was used to keep the legs apart,especially when lying on her side.Name the abductor muscles and describe the action of each that need to be strengthened in order to help maintain abduction.

The soleus is a synergist of the gastrocnemius during plantar flexion.

Damage to the ischiocavernosus muscle would have what effect?

Muscles that help to maintain posture are best described as synergists.

The ________ is the main chewing muscle.

How can a lever system work at a mechanical disadvantage but still be of use to us?

Figure 10.1 Using Figure 10.1, match the following: -The action of lifting a shovel of snow.

In emphysema,the lungs become overdistended with trapped air,which increases the effort required for breathing.Describe the muscles involved when breathing becomes a forced process,such as a patient who has emphysema.